Dell Precision 470 Guide De Référence Rapide página 34

Light Pattern
green
yellow
A B C D yellow
yellow
= yellow
= green
= off
34
Quick Reference Guide
Problem Description
No memory modules are detected.
Suggested Resolution
Reseat the memory modules to
1
ensure that your computer is
successfully communicating with
the memory.
Restart the computer.
2
If the problem still exists, remove
3
all the memory modules and
install one memory module in
connector DIMM_1.
Restart the computer.
4
The following message appears:
Alert! Operating in Debug
Mode. Please Populate
Memory in Pairs for
Normal Operation.
Press <F1> to boot to the
5
operating system.
Run the Dell Diagnostics. 6
If the memory module passes, shut
7
down the computer, remove the
memory module, and then repeat the
process with the remaining memory
modules until a memory error occurs
during start-up or diagnostic testing.
If the first memory module tested is
defective, repeat the process with the
remaining modules to ensure that the
remaining modules are not defective.
When the defective memory module
8
is identified, contact Dell for
a replacement.
NOTE:
If necessary, the computer can
operate in debug mode until new memory
modules are installed.